Oil-burner



C. L.A PEMBERTON.

OIL BURNER.

APPLlcATloN FI.LED`MAY,|4. 192,1.

1,399,986. 'Patented De.13,1921.

UNTTED STATES GYRUS L. PEMBERTON,'OF FAIRMOUNT, INDIANA.

OIL-,BURNER Application filed May 14,

To all whom t may concern.'

Be it known that 1, Crans L. Pnunn'roiv, a citizen or the United States, residing at Fairmount, in the county oi Grant and State oit Indiana, have invented certain new and useful Improvements in Oil- Burners, of which the following is a specification. Y

My invention relates to improvements in oil burners.

An important object of the invention yis to provide an oil burneradapted to be arranged in the lire box ot a coal stove, and to loperate therein, without materially altering the construction or the ire box, or its grate.

A Jfurther object of the invention is to provide a burner or the above mentioned character, having means to thoroughly heat andv vaporize the oil, and mix the same with air, whereby complet-e combustion is obtained,`

A further object of the invention is to provide a burner of the above mentioned character, having the main vaporizing chamber and sub vaporizing chamber arranged adjacent to and concentric with the burner element, to receive the maximum degree of heat therefrom. o v

E; further object of the invention is to provide a burner of the above mentioned char.- acter, formed of few and simple parts, and which is cheap to manufacture and reliable in operation.

@ther objects and advantages of the invention will be apparent during the course or the following description.

In' the accompanying drawings, forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same.

Figure 1 is a side elevation ot a burner embodying my invention,

1Eig. 2 is a plan view of the same, and,

Fig. 3 is a longitudinal section taken on line 3-3 of Fig. 2.

In the drawings, where-in for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 5 designates a receptacle or tray, embodying an upstanding flange 6, as shown. The tray 5 is provided with a pair of air inlet openings 7, within its ends, which openings lare surrounded by annular upstanding flanges 8, spaced a slight distance therefrom, as shown.

The numeral 9 designates an inverted ape proximately U-shaped air supply conduit,

the ends ot'which are held within the flanges 8, and are in tree communication with the Specification of Letters Patent. i Patented Dec. 13, 1921.

`1921. serial No. 469,638.

openings 7. The U-shaped conduit 8 is pro-l vided centrally thereot with a depending tubular outlet extension or flange' 10, dis-v charging downwardly, as shown.

The numeral 11 designates a main generating chamber, preferably tormed integral with the base of the pan 5, centrally thereof between the openings 7. A supply pipe1`2 leads into the bottom of the'main generat. ing chamber 1 1, and'is adapted to eedfoilor other liquid fuel intoothe chamber '11. The'- numeral 13 designates. a lsub generating chamber, smaller 1n diameter than the chamber 11, and arranged above and in concentric relation thereto. The sub generating cha-mber 11 has its lower end, secured to a tubular coupling 14, engaging within a screw threaded opening .15,A and leading into theV main l generating chamber 11.

The numeral 15 designates a tubular .burner element, thev lower endt of which is screw threaded intoan opening 16. 'The burner element 15 has apertures 17, and a` cap 18 closing its top. rllhe depending tubular outlet or flange 10, surrounds the upper end of the tubular burner element 15.

In the use of the device, it is placed withink the tire bof-1 of the stove, such as a coal stove. Thepipe 412 is passed through an opening inl the grate and connected with the main generating chamber. The spaces between the grates, excepting thel spaces beneath the openings 7 are-completelyrilled with as-v bestos pulp, and hence the circulation of air therethrough is prevented, excepting through the openings 7 and inverted U-shaped conduit 9. The oil passes upwardly through the pipe 12 into the chamber 11 and sub chamber 13 and discharges through the apertures 17 of the burner element, at which point it isk ignited, the combustion being supported'by ,the air passing downwardly through tubular outlet 10. 4rlhe' kflame is directed downwardly, and intense heat is therefore applied to the sub generating chamber 13 and the main generating chamber 11, particularly the top wall i thereof. The heat causes the oil in the chambers 11 and 13 to be more or less vaporized, as it passes through the apertures 17, whereby its combustion is 'rendered more complete,

in the presence of the condensing currentV of air, surrounding the same. Y

- It is to be understood that the form of my invention herewith shown and described, is to 4be taken asa preferred exampleV of the same, and that various changes inthe shape,

size, and arrangement of parts may be resorted to without departing from the spirit of my invention or the scope ofthe sub V,joined claims. t

Having thus described my invention, I claim: Y

l. In an oil burner, a main receptacle having air inlet openings formed in the bottom thereof, an inverted approximately U-shaped air supply conduit having its Vends in cominunication with the inlet openings and provided with a downwardly discharging tubn Y lar outlet, a main generating chamber formedV upon and arranged beneath the main receptacle and located between said air inlet openings, means to supply oil or the vlike into the main chamber, a sub generating chamberarranged near and above the main chamber within the main receptacle and having com-V munication therewith, and a tubular burner element connected with the sub generating chamber and surrounded by the tubular air outlet.

2. In an oil burner, a main receptacle having air inlet openings in'its bottoni, an inverted approXimatelyU'shaped air supply conduit having its ends in communication with said air inlet openings and provided between its ends with a downwardly discharging air outlet, a mainv generating chamber arranged beneath the main receptacle and located between said air inlet openings, the bottom of the main receptacle constituting the top of the main generating chamber, aY sub generating chamber disposed within thev main'receptacle near and above the main generating chamber' and having communication therewith, a burner element connected with the sub generating chamber and projecting above the saine, and means to supply liquid fuel to the main generating chamber.

3. In an oil burner, a vmain receptacle hav- Y vchamber and'having communication there-` with, and a burner element arranged above the sub generating chamber and connected therewith, the main generating chamber, 'the sub generating chamber, burner element, and air discharge outlet being all arranged in substantially concentric relation.

In testimony whereof I aiiixml signature.

CYRUS L. PEMB RTCN. 

